I’m saying “The airline should have known, based on previous years, that these flights would be too full to carry the number of people they sold tickets to,” and “Given that information, the airline shouldn’t have sold these tickets in the first place.”

They have Aeromexico budget tickets, issued to airline staff and their relatives, which enable them to fly only if seats become available.
The airline says it advised ticket-holders not to fly during the peak holiday season.

So they got cheap tickets, possibly well in advance, and because they’re cheapskates they flew despite the warning. No sympathy from me then …

Aeromexico is…less than inspiring…when it comes to flight scheduling and demand forecasting.

The one time I had the pleasure of their hospitality, they had used the expected cancellation rates from their regular flights for christmas holiday service. They helpfully solved the ensuing obvious problem by promising bumped passengers room on the subsequent flight, which was also overbooked for the exact same reason, and then bumping them again. I think it took us 4 cycles of that to actually get a flight, and I think that they pushed us ahead of some other luckless bastards because my dad was familiar with DOT denied boarding compensation requirements and willing to push the issue a lot harder than some mostly-useless ‘vouchers’.

I just hope that they outsource their aircraft maintenance; because the user-facing operation is a disaster.